Identify the anion present in the following compounds : 1. Compound X

Identify the anion present in the following compounds : 1. Compound X on heating with copper turnings and concentrated sulphuric acid liberates a reddish brown gas. 2. When a solution of compound Y is treated with silver nitrate solution a white precipitate is obtained which is soluble in excess of ammonium hydroxide solution. 3. Compound Z which on reacting with dilute sulphuric acid liberates a gas which turns lime waer milky, but the gas has no effect on acidified potassium dichromate solution. 4. Compound L on reacting with Barium chloride solution gives a white precipitate insoluble in dilute hydrochloric acid or dilute nitric acid.

Answer»

1. Nitrate ion, NO^{3 –}

2. Chloride ion, Cl^–

3. Carbonate ion, CO₃^2-

4. Sulphate ion, SO₄